diff --git a/proposals/4108-oidc-qr-login.md b/proposals/4108-oidc-qr-login.md
index cb8b7a6f0..c6e5e1a09 100644
--- a/proposals/4108-oidc-qr-login.md
+++ b/proposals/4108-oidc-qr-login.md
@@ -270,7 +270,7 @@ HTTP response codes:
 
 ##### Maximum payload size
 
-The server MUST enforce a maximum payload size of 4KB.
+The server MUST enforce a maximum payload size of 4096 UTF8 characters.
 
 ##### `sequence_token` values